Pith Number

pith:O7LAUDC7

pith:2013:O7LAUDC7F6BK35WCWHU333V2DE

not attested not anchored not stored refs pending

Numerical methods for reconstruction of source term of heat equation from the final overdetermination

Jing Li, Xiaoping Fang, Youjun Deng

arxiv:1311.5972 v2 · 2013-11-23 · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O7LAUDC7F6BK35WCWHU333V2DE}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:58:45.286148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77d60a0c5f2f82adf6c2b1e9bdeeba19134e2212576cb5cd6694fbc56dfe38b3

Aliases

arxiv: 1311.5972 · arxiv_version: 1311.5972v2 · doi: 10.48550/arxiv.1311.5972 · pith_short_12: O7LAUDC7F6BK · pith_short_16: O7LAUDC7F6BK35WC · pith_short_8: O7LAUDC7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/O7LAUDC7F6BK35WCWHU333V2DE \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 77d60a0c5f2f82adf6c2b1e9bdeeba19134e2212576cb5cd6694fbc56dfe38b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "612bf388d6c77992aa5d4f9224b217a5fce783ad9c43ae96e22e220889b2e034",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-11-23T08:07:25Z",
    "title_canon_sha256": "be4f1e4e2d69b39f141c1b8aa9520928bdcb1c9827eb5f27b32d507689f54a29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5972",
    "kind": "arxiv",
    "version": 2
  }
}